Jim Reardon (born 1965) is an American animator, storyboard artist, television writer, television director, and screenwriter. He is best known for his work on the animated TV series The Simpsons. He has directed over 30 episodes of the series and was credited as a supervising director for seasons 9 through 15. Reardon attended the character animation program at the California Institute of the Arts in 1982, where one of his student projects, the satirical cartoon Bring Me the head of Charlie Brown (1986), has become a cult classic through the likes of YouTube. He was hired by John Kricfalusi as a writer on Mighty Mouse: The New Adventures and later worked on Tiny Toon Adventures. He has been described by Ralph Bakshi as "one of the best cartoon writers in the business".
Reardon supervised the storyboard department and co-wrote the Pixar film WALL-E with Andrew Stanton, which was released on June 27, 2008. He was nominated for an Academy Award for Best Original screenplay for WALL-E at the 81st Academy Awards.